I think most of them have websites, Carol, and I've looked at a few including Krull-Smith and Odom's Orchids. The shipping costs make buying orchids from them prohibitive for me, generally.
My kids buy me gift orchids sometimes, and I'm on an e-mail list for Carter & Holmes in SC where I've bought a few plants. Most were very small, and not a great value for what you get. But I did get my Thunderstorm orchid from them, and another really great Onc. that has bloomed and bloomed.